Best Flights starting from $1,497
from$1,497business
Lisbon (LIS)
Wed, Sep 2
One-way
Chicago (Any)
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from$1,530business
Lisbon (LIS)
Thu, Sep 3
One-way
Chicago (Any)
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from$1,530business
Lisbon (LIS)
Sat, Sep 5
One-way
Chicago (Any)
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from$1,536business
Lisbon (LIS)
Tue, Sep 1
One-way
Chicago (Any)
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from$2,066business
Lisbon (LIS)
Fri, Sep 4
One-way
Chicago (Any)
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from$2,507business
Lisbon (LIS)
Sun, Sep 6
One-way
Chicago (Any)
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Other Destinations
Lisbon (LIS) to New York (JFK) in September from $620
From $620
Lisbon (LIS) to Atlanta (Any) in September from $1,455
From $1,455
Lisbon (LIS) to New York (Any) in September from $1,730
From $1,730
Lisbon (LIS) to Toronto (YYZ) in October from $359
From $359
Lisbon (LIS) to Los Angeles (LAX) in October from $524
From $524
Lisbon (LIS) to St Louis (STL) in November from $968
From $968
Flights from Other Cities
Los Angeles (Any) to Chicago (Any) in September from $120
From $120
Boston (BOS) to Chicago (Any) in September from $196
From $196
Vancouver (Any) to Chicago (Any) in September from $207
From $207
Philadelphia (PHL) to Chicago (Any) in September from $208
From $208
San Antonio (SAT) to Chicago (Any) in September from $231
From $231
Savannah (SAV) to Chicago (Any) in September from $271
From $271
✈️ Flight Guide: Lisbon (LIS) → Chicago (Any)
Complete travel information for your September journey
September is a favorable month to depart from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA): the city still benefits from warm weather while demand begins to stabilize after peak summer. Expect regular transatlantic services; book direct flights early for the best fares. Use the Metro (Red Line) or AeroBus for reliable airport transfers, arrive three hours before international departures, and confirm your airline's baggage policies online. For cheap flights from Lisbon to Chicago in September, set fare alerts and be flexible on midweek dates—search Lisbon to Chicago flights now to compare prices and schedules.
Departing from Lisbon (LIS) FAQs
For international flights from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) in September, arrive at least 3 hours before departure. September remains a busy late-summer month with ongoing tourism and business travel, so extra time helps with check-in, security lines, and any airline seasonal staffing variations. Use online check-in where possible and allow time for luggage drop-off to ensure a stress-free departure.
Yes, seasonal and year-round nonstop services often operate from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA), most commonly to Chicago O'Hare (part of CHIA). Availability in September is good thanks to sustained transatlantic demand; check carriers like TAP Air Portugal and U.S. carriers for current schedules and book early for the best fares. If no nonstop fits your dates, one-stop options via European hubs are frequent.
In September, the quickest public option to Lisbon Humberto Delgado Airport (LIS) from central Lisbon is the Metro (Red Line) to the airport station, which avoids traffic and is budget-friendly. AeroBus, taxis, rideshares, and private shuttles are plentiful; allow extra time for morning or early-evening traffic near Avenida da República. For flight deals, plan airport transit in your travel time to secure timely check-in.
Expect standard Schengen/EU and airline baggage rules at Lisbon Humberto Delgado Airport (LIS), but U.S.-bound flights may require stricter carry-on checks and documentation. September can still see higher passenger volumes, so verify your airline's carry-on dimensions and prohibited items before arrival, and have passports and ESTA or visa documents ready. For cheaper fares, check baggage fees and include checked luggage when comparing Lisbon to Chicago flight prices.
As of September, most COVID-19 travel restrictions have eased, but US entry may still require up-to-date vaccination or other health documentation depending on policy changes. Always verify current U.S. entry requirements, airline policies, and Lisbon Humberto Delgado Airport (LIS) advisories before departure to avoid disruptions. Monitor official sources and your airline for last-minute updates.
To find cheap Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) flights in September, compare round-trip fares on aggregator sites, set price alerts, and book 6–10 weeks in advance for peak late-summer demand. Be flexible with midweek departures, consider one-stop routes via major hubs (e.g., Madrid, London, Frankfurt), and check low-fare sales from TAP Air Portugal and U.S. carriers. Use a fare tracker and a targeted CTA: search Lisbon to Chicago cheap flights now to lock in savings.
Arriving at Chicago (All Airports) (CHIA) in September offers pleasant late-summer weather and fewer crowds than peak July. Most transatlantic flights from Lisbon land at Chicago O'Hare International; expect standard U.S. customs and immigration procedures. Use the CTA Blue Line from O'Hare or the Orange Line from Midway for cost-effective downtown connections, or opt for taxis for door-to-door service. September is perfect for exploring Chicago neighborhoods, riverfront walks, and nearby cities like Milwaukee and Naperville—search Lisbon to Chicago flights and plan your ground logistics in advance for a smooth arrival.
Arriving at Chicago (Any) FAQs
Chicago (All Airports) (CHIA) typically refers to Chicago O'Hare International Airport and Chicago Midway International Airport, with O'Hare (ORD) being the main international gateway for transatlantic flights from Lisbon. In September, most Lisbon-origin flights land at O'Hare due to international customs facilities, though connections into Midway via domestic carriers are possible. Check your ticket for the specific airport code and arrival terminal.
At Chicago O'Hare, plan for passport control and U.S. Customs and Border Protection procedures after your Lisbon flight; September can bring steady passenger volumes but lines are often managed efficiently with multiple processing lanes. Have your passport, ESTA or visa paperwork, and completed customs declaration ready. Consider enrolling in Global Entry for faster processing on return trips and follow signage to customs and baggage claim to expedite your arrival.
Typical nonstop flight time from Lisbon Humberto Delgado Airport (LIS) to Chicago O'Hare (part of CHIA) is approximately 8 to 9 hours depending on winds and routing. One-stop itineraries can range from 11 to 16+ hours total travel time including layovers. For the most accurate schedule, check the airline's September timetables and factor in connection times when comparing Lisbon to Chicago flights.
From Chicago O'Hare, the CTA Blue Line train provides an economical 35–45 minute ride to downtown; airport taxis and rideshares are also readily available. From Midway, use the CTA Orange Line (about 25–30 minutes to downtown), taxis, or rideshares. In September, weather is mild but unpredictable—pack a light jacket and plan for possible rush-hour traffic when choosing ground transportation.
Yes, from Chicago (All Airports) (CHIA) you can access major Midwest destinations including Milwaukee (90 minutes north), Naperville and Aurora (western suburbs), Indianapolis (3–4 hours south), and regional attractions like Lake Geneva and the Illinois shoreline. September is ideal for day trips and exploring Chicago neighborhoods with fewer summer crowds—book tours and tickets in advance for popular sites.
When arriving in Chicago from Lisbon in September, check whether your bags are checked through to your final connection if continuing domestically; you may need to claim and recheck at customs. Keep essential items in your carry-on, including travel documents and a light layer for Chicago's variable September weather. If you have a tight connection, contact your airline in advance and consider priority baggage or expedited customs options where available.
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September Events & Festivals — Traveling from Lisbon (LIS) to Chicago (All Airports) (CHIA)
September is rich with cultural activity in both Lisbon and Chicago. In Lisbon, expect late-summer open-air concerts, Fado evenings in Alfama, and neighborhood street fairs that extend into early autumn—ideal for a last taste of Portuguese summer before flying. In Chicago, September features outdoor cultural programming and the returning Chicago Jazz Festival over Labor Day weekend, along with food-focused events and neighborhood art walks. If traveling from Lisbon to Chicago in September, book event tickets and popular restaurants in advance to avoid sold-out dates. CTA: Search Lisbon to Chicago flights for September and plan your festival itinerary today.
Best Time to Fly from Lisbon (LIS) to Chicago (All Airports) (CHIA) — September Considerations
The best time to fly from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) for September travel is to book 6–10 weeks in advance and aim for midweek departures. Early September can still be busy with summer carryover demand; late-September dates often offer better fares and lower crowds. For comfort, choose overnight transatlantic flights to arrive in Chicago in the morning and maximize your first day. CTA: Compare Lisbon to Chicago flights for September now to find optimal dates and fares.
Direct vs Connecting Flights — Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA)
Direct flights from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) save time (roughly 8–9 hours) and reduce the hassle of connections, making them ideal for business travelers and those wanting to maximize time in Chicago. Connecting flights can be substantially cheaper, offer flexible routing via Madrid, London, or Frankfurt, and allow stopovers for multi-city trips. In September, weigh the time savings of nonstop services against potential cost savings from one-stop itineraries. CTA: Compare nonstop and connecting Lisbon to Chicago flights for your September travel dates to decide which fits your priorities.
Airline Comparison for Lisbon (LIS) to Chicago (All Airports) (CHIA) — September Options
TAP Air Portugal often offers nonstop service from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) with competitively priced fares and Portuguese hospitality onboard. United and American frequently provide one-stop options via European or U.S. hubs, sometimes bundling loyalty benefits for U.S.-based flyers. Compare seat comfort, baggage allowances, and loyalty program perks when booking September flights: nonstop convenience vs. potential savings and routing flexibility. CTA: Review Lisbon to Chicago flight options by carrier now to choose the best balance of price and convenience for your trip.
Seasonal Travel Tips for Lisbon (LIS) to Chicago (All Airports) (CHIA) in September
September travel from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) requires layered clothing: Lisbon typically remains warm while Chicago cools, especially in evenings. Pack a light jacket for arrival and expect mild to crisp temperatures; carry an umbrella for occasional fall showers. For smoother travel, check flight status before leaving for LIS, enroll in travel notifications with your airline, and consider travel insurance for schedule disruptions. CTA: Book Lisbon to Chicago flights for September and download your carrier app for real-time updates and gate information.
Flight Time and Schedules — Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) in September
Nonstop flights from Lisbon Humberto Delgado Airport (LIS) to Chicago O'Hare (part of Chicago (All Airports) (CHIA)) generally take about 8 to 9 hours. One-stop routes via Madrid, London Heathrow, Frankfurt, or other European hubs typically total 11–16 hours depending on connection length. In September, airlines often time transatlantic departures overnight (red-eye) to maximize daytime arrival in Chicago; check specific carrier timetables and book flights that fit your jet-lag and schedule preferences. For the latest schedules and exact durations for your dates, compare LIS to CHIA flight times across carriers and use schedule filters.
Cheap Flights from Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) — September Deals
Find cheap Lisbon Humberto Delgado Airport (LIS) to Chicago (All Airports) (CHIA) flights in September by using multi-search aggregators, setting price alerts, and being flexible on travel dates. Midweek departures (Tuesday–Thursday) and late-night flights often show lower fares. Consider one-stop itineraries via Madrid, London, or Frankfurt if nonstop prices are high. Sign up for airline newsletters from TAP Air Portugal and U.S. carriers for flash sales and use a combined search strategy: compare Lisbon to Chicago round-trip fares, then book directly with the airline for easier changes. CTA: Search Lisbon to Chicago cheap flights now and enable alerts to lock in September savings.